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13th Feb 2015, 23:24

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shumway76

Join Date: Jun 2011

Location: Earth

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"B" nut

Just curious, how did the term "B" nut in pipelines came about? Why "B"?

Other terms I can understand, like "E"-seal (since the seal has an "E" shape) or "P" seal (seal has a "P" shape), but "B" nut???

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